Record audio

To do this procedure, your computer must be equipped with a sound card, microphone, and speakers. Make sure that you aren't running any other sound recording applications, such as Speech Recognition.

In the navigation pane, click the slide that you want to add sound to.
How to select slides in the navigation pane
1. On the View menu, click Normal.
2. In the top of the navigation pane, click the Slides tab, and then click a slide.
  
  Depending on the width of the navigation pane, you will either see the and named tabs or the Slides and Outline icon tabs.
On the Home tab, under Insert, click Media, and then click Record Audio.
To start recording, click Record .
When you are finished, click Stop .
To listen to the sound that you just recorded, click Play .
In the Name box, type a name for the sound, and then click Save.

An audio icon appears on the slide.

Record audio

How to select slides in the navigation pane